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Old 3rd October 2012, 11:18 PM   #1221
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Quote:
Originally Posted by Lazy Cat View Post
White PCB top looks so clean and emphasize installed's parts marvelous colours. The last time I made white PCB was for ProJet Power Module in 2007.
I have in mind Upapop production....I will begin with soldering this weekend.

Marc
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Old 3rd October 2012, 11:24 PM   #1222
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Yes, he has beautiful PCBs, all metal parts gold plated, also very professional design of casing. OK, so weekend it is.
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Old 4th October 2012, 03:19 AM   #1223
naf is offline naf  Indonesia
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Here they are

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Old 4th October 2012, 11:53 AM   #1224
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Yet i've been complet about parts : tlp627 and socket arrived today

Marc
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Old 4th October 2012, 02:14 PM   #1225
mikelm is offline mikelm  England
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Quote:
Originally Posted by sonnya View Post
Sure i will, but at present i have an openloop gain of ~30dB. I would like to end up with 50 - 60dB in openloop gain.
I'm managing that kind of OLG ( 50 - 60 ) in spice by combining MF & BJT pair for o/p device. MF for i/p BJT for o/p. MF i/p in VAS gives more gain than BJT

For op amp I would try ZVN/P 3310a followed by BJT of ur choice - the 3310's have very low i/p capacitance and sound good.

mike
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Old 4th October 2012, 02:25 PM   #1226
Salas is online now Salas  Greece
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Quote:
Originally Posted by Lazy Cat View Post
White PCB top looks so clean and emphasize installed's parts marvelous colours. The last time I made white PCB was for ProJet Power Module in 2007.
But possible reworks and dust later are brought to high relief, not to mention if a mistake burns something on white. White with gold designations in a clean finished project looks very posh its true.
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Old 4th October 2012, 02:34 PM   #1227
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Quote:
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But possible reworks and dust later are brought to high relief, not to mention if a mistake burns something on white. White with gold designations in a clean finished project looks very posh its true.
Salas, since the wite coat is only on the top side of my sigle side Pcb bord without metalised through holes, damages are not realy a issue in my case.

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Old 4th October 2012, 04:39 PM   #1228
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Did painted boards provide any advantage on a technical point of view ?
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Old 4th October 2012, 04:50 PM   #1229
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Did painted boards provide any advantage on a technical point of view ?
No Christophe, just done for personnal aesthtic pleasure.

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Old 4th October 2012, 05:49 PM   #1230
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No Christophe, just done for personnal aesthtic pleasure
Oh, please, never look inside one of my racks, even cd players or preamp looking from outside as they where out of the box...
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